摘要
目的 探索有效而经济的公共场所空气消毒方法和理想的空气消毒剂。方法 以甲醛、过氧乙酸和二氯异氰尿酸钠 (优氯净 )进行实验室抑菌试验和 6家公共场所的现场空气消毒试验。结果 2 %甲醛对金黄色葡萄球菌和伤寒杆菌的抑菌浓度最低 (0 .0 313% ) ;现场试验表明优氯净 (含有效氯 10 % ,10 0 ml/ m3呼吸带高度喷雾 )、过氧乙酸 (5 % ,0 .5ml/ m3地面喷洒 )和甲醛 (0 .2 % ,0 .5 ml/ m3,1.0 ml/ m3地面喷洒 )杀菌率分别为 6 1.5 6 %、4 9.34%、35 .2 2 %和 6 8.75 % ;空气中细菌总数 (y)与公共场所每 5 min顾客流量 (x)呈正相关 (y=5 1.6 7+10 2 .38x,r=0 .96 7,P<0 .0 5 )。结论 因0 .2 %甲醛有明显的感官刺激 ,最经济有效的消毒方法是 10 0 ml/ m3优氯净 (含有效氯 10 % )
Objective To explore the effective and economic method for air disinfection in public places and ideal disinfectant Methods The bacteriostatic experiments in laboratory and air disinfection effects of 2% formaldehyde,peroxyacetic acid and sodium dichloroisocyanurate in six public places were observed Results The lowest bacteriostatic concentrations of formaldehyde for both the S aureus and the B typhi were 0 0313% The on site air disinfection experiments showed bactericidal effeciencies of 61 56% for spraying disinfection by sodium dichloroisocyanurate with concentration of 10% available chloride at dose of 100 ml/m 3 at the height of breathing zone,49.34% for ground nebulizing disinfection by peroxyacetic acid at dose of 0 5 ml/m 3 and 35.22% and 68.75% for ground nebulizing disinfection by formaldehyde with concentrations of 0.2% at doses of 0 5 ml/m 3 and 1 ml/m 3 respectively There was a positive correlation between the total count of bacteria in air (y) and the number of customer flow of per 5 minutes in public places (x), the regressive equation was =51 67+102 38x (r=0 967,P< 0 05) Conclusion 0 2% formaldehyde revealed significant organoleptic irritation The spraying disinfection by sodium dichloroisocyancerate was regarded as the most economic and effective method for air disinfection in public places at dose of 100 ml/m 3 at the height of breathing zone.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2001年第5期289-291,共3页
Journal of Environment and Health
关键词
公共场所
空气消毒
二氯异氰酸尿钠
甲醛
过氧乙酸
实验
Public places
Air disinfection
Sodium dichloroisocynurate
Formaldehyde
Peroxyacetic acid
